Navalyze · Chemical tanker · Ship

VALDERICE

IMO: 9587843
Type: Chemical tanker
Average cargo carried: 14,150 t
Flag (estimated): Italy
Port of registry: Trieste
Technical efficiency: EIV 5.66 g CO₂/t·nm
Former names: ASTELLA

ISM company (DoC holder) in 2025: Navigazione Montanari SpA

Report year

2020 at a glance

From the 2020 THETIS-MRV report. Carries about 15,241 t of cargo on average.

Fuel kg/nm

92.2

Chemical tanker median 85.7 kg/nm (+8%)

CO₂ per transport work (cargo)

19.2

g CO₂/t·nm · Chemical tanker median 16.2 (+19%)

Average speed

10.5 kn

Chemical tanker median 11.4 kn (−8%)

Fuel per day at sea

23.2 t/day

Fuel consumed

4,071 t

CO₂ emitted

12,882 t

Distance sailed

44,136 nm

CO₂ ÷ CO₂ per mile

Time at sea

4,211 h

175 days, 48% of the year

Within the chemical tanker fleet, 2025

Set against all 1,460 chemical tanker ships with a full-year 2025 report. Bigger ships burn more per mile but less per tonne of cargo, so read fuel per mile with the ship's size in mind.

Fuel kg/nmThis ship 111 kg/nm · median 79.7 (+39%)

52.8Ranks 1,315 of 1,460, lowest first111

Average speedThis ship 10.9 kn · median 11.1 (−2%)

8.8Faster than 44% of chemical tanker ships12.4

CO₂ per transport work (cargo)This ship 25.1 g CO₂/t·nm · median 15.0 (+67%)

7.93Ranks 1,085 of 1,460, lowest first40.2

Middle 80% of shipsMiddle 50%Chemical tanker medianThis ship

Where the emissions happen, 2020

THETIS splits each ship's CO₂ by voyage type. The split sets how much falls under the EU ETS: all of it within the EU and at berth, half of it on voyages into or out of the EU.

Between EU ports26%
From the EU25%
Into the EU41%
At berth in the EU9%

Fuel burned laden

2,349 t

58% of all fuel; 42% in ballast or unladen

CO₂ at berth

1,156 t

9.0% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

–

CO₂eq on top of CO₂ alone, from CH₄ and N₂O

Over the years

Full-year reports only. The Chemical tanker median is the middle ship of all chemical tanker ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

VALDERICE
Chemical tanker median

60.080.0100.0120.0140.0

’182018’192019’202020’212021’222022’232023’242024’252025

Average speed, kn

VALDERICE
Chemical tanker median

2.04.06.08.010.012.0

’182018’192019’202020’212021’222022’232023’242024’252025

CO₂ per transport work (cargo), g CO₂/t·nm

VALDERICE
Chemical tanker median

15.020.025.030.0

’192019’202020’212021’222022’232023’242024’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+1.0 kn	+8%	+18%	−20%	+6%	1.0 kn faster, fuel per mile up 8%; better than speed alone explains (hull, engine or trade).
2023→2024	−0.3 kn	+4%	+1%	−12%	+33%	Same speed, fuel per mile up 4%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−0.5 kn	+5%	−1%	+16%	+12%	0.5 kn slower, fuel per mile up 5%; worse than speed alone explains (fouling, weather, loading or trade).
2021→2022	+0.4 kn	+4%	+7%	−8%	+0%	0.4 kn faster, fuel per mile up 4%; in line with the speed change.
2020→2021	−0.2 kn	−1%	−2%	−14%	−17%	Same speed, fuel per mile flat.
2019→2020	+6.6 kn	−24%	+102%	+295%	−12%	6.6 kn faster, fuel per mile down 24%; better than speed alone explains (hull, engine or trade).
2018→2019	−1.8 kn	+25%	−14%	−71%	–	1.8 kn slower, fuel per mile up 25%; worse than speed alone explains (fouling, weather, loading or trade).

Part-year reports are left out of these comparisons. Fuel per mile rises roughly with the square of speed for a given ship, so a change in speed explains much of a change in fuel per mile.

Every reporting year

One row per THETIS-MRV report. A ship that changed operator during a year has a part-year report for each.

Operation

Year	ISM company	Fuel t	CO₂ t	Distance nm	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	Navigazione Montanari SpA	3,169	10,130	28,535	2,621	10.9	111	25.1	–
2024part-year	SOCATRA	2,574	8,131	25,968	3,205	8.1	99.1	25.1	48%
2024	Navigazione Montanari SpA	3,679	11,632	35,700	3,597	9.9	103	23.6	34%
2023	not published	4,024	12,718	40,454	3,975	10.2	99.5	17.7	52%
2022	not published	3,310	10,443	34,797	3,241	10.7	95.1	15.9	70%
2021	not published	3,471	11,001	37,858	3,661	10.3	91.7	15.9	71%
2020	not published	4,071	12,882	44,136	4,211	10.5	92.2	19.2	58%
2019	not published	1,351	4,239	11,179	2,831	3.9	121	21.8	63%
2018	not published	3,668	11,545	37,910	6,629	5.7	96.8	0.54	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Chemical tanker median	vs Chemical tanker	Rank	Verifier	Methods
2025	Navigazione Montanari SpA	25.1	15.0	+67%	1,085 of 1,460	RINA	B
2024part-year	SOCATRA	–	–	–	–	Bureau Veritas	B+C
2024	Navigazione Montanari SpA	23.6	16.7	+41%	866 of 1,274	RINA	B
2023	not published	17.7	16.2	+9%	715 of 1,314	Bureau Veritas	B+C
2022	not published	15.9	16.1	−1%	689 of 1,409	Bureau Veritas	C
2021	not published	15.9	16.7	−5%	618 of 1,343	Bureau Veritas	C
2020	not published	19.2	16.2	+19%	827 of 1,312	Bureau Veritas	C
2019	not published	21.8	17.3	+26%	868 of 1,321	Bureau Veritas	C
2018	not published	–	–	–	–	Bureau Veritas	C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Chemical tanker ships are benchmarked on CO₂ per transport work (cargo) (TW), in g CO₂/t·nm. CO₂eq adds methane and nitrous oxide and is in the public files from 2024. Rank counts from the lowest figure among that year's chemical tanker ships. Methods: A delivery notes, B tank monitoring, C flow meters, D direct measurement. FuelEU GHG intensity is not shown: it needs fuel types, which the public file does not carry. Operators are named only from 2024, the first year the public files carry them; earlier years belong to the ship, not to any company.